Home / 97,905.76-135,105.36-55,464.64

Finding the Fourth Proportional to 97,905.76, 135,105.36 and 55,464.64

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Solution

The fourth proportional to 97,905.76, 135,105.36 and 55,464.64 is: 76,538.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,905.76 : 135,105.36 = 55,464.64 : x
  2. Step 2: Convert to fraction form
    97,905.76/135,105.36 = 55,464.64/x
  3. Step 3: Cross multiply
    97,905.76x = 135,105.36 × 55,464.64
  4. Step 4: Simplify right side
    97,905.76x = 7,493,570,154.47
  5. Step 5: Solve for x
    x = 7,493,570,154.47/97,905.76
  6. Step 6: Final answer
    x = 76,538.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.